US20070071369A1 - Waterproof structure of bags - Google Patents
Waterproof structure of bags Download PDFInfo
- Publication number
- US20070071369A1 US20070071369A1 US11/232,978 US23297805A US2007071369A1 US 20070071369 A1 US20070071369 A1 US 20070071369A1 US 23297805 A US23297805 A US 23297805A US 2007071369 A1 US2007071369 A1 US 2007071369A1
- Authority
- US
- United States
- Prior art keywords
- sidewall
- plastic
- cloth
- inner layer
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/008—Details; Accessories for making water- or air-tight
Definitions
- the waterproof structure of the bag comprising:a cloth surface ( 1 ) attached by plastic inner layer ( 2 ), plastic sidewall ( 3 ) and cloth sidewall ( 4 ), characterized in that the plastic sidewall ( 3 ) embraces both sides, of the plastic inner layer ( 2 ), which are welded together by ultrasonic wave.
- the cloth sidewall ( 4 ) embraces the cloth surface ( 1 ) and the plastic inner layer ( 2 ) which is welded with the plastic sidewall ( 3 ), and both cloth surface( 1 ), plastic inner layer ( 2 ) and cloth sidewall ( 4 ) are sewed up all together.
- FIG. 1 is a perspective view of a bag, constructed in accordance with the present invention.
- FIG. 2 is a schematic cross-sectional elevation of the waterproof portion of FIG. 1 .
- the waterproof structure of the bag comprising: a cloth surface ( 1 ), attached by plastic inner layer ( 2 ), plastic sidewall ( 3 ) and cloth sidewall ( 4 ), characterized in that the plastic sidewall( 3 ) embraces both sides, of the plastic inner layer ( 2 ), which are welded together by ultrasonic wave.
- the cloth sidewall ( 4 ) embraces the cloth surface ( 1 ) and the plastic inner layer ( 2 ) which is welded with the plastic sidewall ( 3 ), both cloth surface( 1 ), plastic inner layer ( 2 ) and cloth sidewall ( 4 ) are sewed up all together.
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
A Waterproof structure of the bag comprising a cloth surface (1) attached by a plastic inner layer (2), a plastic sidewall (3) and a cloth sidewall (4), characterized in that the plastic sidewall (3) embraces both sides, of the plastic inner layer (2), which are welded together by ultrasonic wave. The cloth sidewall (4) embraces the cloth surface (1) and the plastic inner layer (2) welded with the plastic sidewall (3), and both cloth surface(1), plastic inner layer (2) and cloth sidewall (4) are sewed up all together.
Description
- It is known that bags like school, travel or sporting bags are often made by sewing. However, the sewing region of a bag is easy for the drench of water to its interior. In rainy days, water from the sewing line may soak books, files, papers, clothes, and other objects inside the bag. In order to prevent from infiltration, many students simply cover their school bags with a plastic membrane to prevent said problem. But it is troublesome and not effective enough. Once the plastic membrane is discarded, the environment pollution caused by said membrane will certainly be anther problem. Though the sewing line can be adhered by a plastic membrane for the water-resistant, its appearance will be bad and not attractive, and will lose competitivvity in the market.
- It is an objective of the present invention to overcome or substantially ameliorate at least one of the above disadvantages and/or more generally to provide an improved waterproof bag and its structure. The waterproof structure of the bag comprising:a cloth surface (1) attached by plastic inner layer (2), plastic sidewall (3) and cloth sidewall (4), characterized in that the plastic sidewall (3) embraces both sides, of the plastic inner layer (2), which are welded together by ultrasonic wave. The cloth sidewall (4) embraces the cloth surface (1) and the plastic inner layer (2) which is welded with the plastic sidewall (3), and both cloth surface(1), plastic inner layer (2) and cloth sidewall (4) are sewed up all together.
- It is therefore an objective of the present invention, generally stated, to provide a bag having improved waterproof quality, and having an eye-appealing sewing line better than the traditional bags.
- A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings, wherein:
-
FIG. 1 is a perspective view of a bag, constructed in accordance with the present invention. -
FIG. 2 is a schematic cross-sectional elevation of the waterproof portion ofFIG. 1 . - In the accompanying drawings there is schematically depicted an item of bag. The waterproof structure of the bag comprising: a cloth surface (1), attached by plastic inner layer (2), plastic sidewall (3) and cloth sidewall (4), characterized in that the plastic sidewall(3) embraces both sides, of the plastic inner layer (2), which are welded together by ultrasonic wave. The cloth sidewall (4) embraces the cloth surface (1) and the plastic inner layer (2) which is welded with the plastic sidewall (3), both cloth surface(1), plastic inner layer (2) and cloth sidewall (4) are sewed up all together.
- As it can be seen, if a bag is left exposed to the rain for example, water on the surface or sewing line of the bag will not enter the bag compartment because of the presence of impermeable barriers, that is, the plastic inner layer (2) welded with the plastic sidewall (3) and sewed up tighter with cloth sidewall (4) provides the bag having improved waterproof quality, and having an attractive sewing line better than the traditional bags.
- It should be appreciated that immaterial modifications and variations which are obvious to those persons skilled in the art are within the scope of the present invention.
Claims (1)
1. A waterproof structure of the bag comprising:
a cloth surface (1),
a plastic inner layer (2), a plastic sidewall (3) and a cloth sidewall (4) attached to said cloth surface(1),
characterized in that said plastic sidewall(3) embraces both sides, of the plastic inner layer (2),which are welded together by ultrasonic wave;and
said cloth sidewall (4) embraces said cloth surface (1) and said plastic inner layer (2) welded with said plastic sidewall (3); and both cloth surface(1), plastic inner layer (2) and cloth sidewall (4) are sewed up all together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/232,978 US20070071369A1 (en) | 2005-09-23 | 2005-09-23 | Waterproof structure of bags |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/232,978 US20070071369A1 (en) | 2005-09-23 | 2005-09-23 | Waterproof structure of bags |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070071369A1 true US20070071369A1 (en) | 2007-03-29 |
Family
ID=37894058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/232,978 Abandoned US20070071369A1 (en) | 2005-09-23 | 2005-09-23 | Waterproof structure of bags |
Country Status (1)
Country | Link |
---|---|
US (1) | US20070071369A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090183536A1 (en) * | 2008-01-17 | 2009-07-23 | David Harmon | Quick action padlock protector pouch and chain locking system |
US8622205B2 (en) | 2012-04-16 | 2014-01-07 | Alec Ramsey | Pocket storable hand towel and case |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4127155A (en) * | 1976-11-15 | 1978-11-28 | Hydorn Dennis H | Waterproof bag with waterproof divider |
US4190010A (en) * | 1977-03-18 | 1980-02-26 | Noel Bibby Limited | Waterproof inwardly facing garment seams produced by high frequency welding |
US4876135A (en) * | 1986-11-24 | 1989-10-24 | Mcintosh Blair | Floor mat with disposable absorbent pad |
US4979953A (en) * | 1990-02-16 | 1990-12-25 | Instrumed, Inc. | Medical disposable inflatable tourniquet cuff |
US6769201B2 (en) * | 2000-12-18 | 2004-08-03 | Sympatex Technologies Gmbh | Waterproof shoe structure |
US7005021B2 (en) * | 2003-05-21 | 2006-02-28 | Mountain Hardwear, Inc. | Method of forming and adhesively bonded seam |
US7013489B1 (en) * | 2002-06-13 | 2006-03-21 | Mcgrath Diverse Products, L.L.C. | Liner and garment ensemble for thermal wear and anti-exposure suits |
-
2005
- 2005-09-23 US US11/232,978 patent/US20070071369A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4127155A (en) * | 1976-11-15 | 1978-11-28 | Hydorn Dennis H | Waterproof bag with waterproof divider |
US4190010A (en) * | 1977-03-18 | 1980-02-26 | Noel Bibby Limited | Waterproof inwardly facing garment seams produced by high frequency welding |
US4876135A (en) * | 1986-11-24 | 1989-10-24 | Mcintosh Blair | Floor mat with disposable absorbent pad |
US4979953A (en) * | 1990-02-16 | 1990-12-25 | Instrumed, Inc. | Medical disposable inflatable tourniquet cuff |
US6769201B2 (en) * | 2000-12-18 | 2004-08-03 | Sympatex Technologies Gmbh | Waterproof shoe structure |
US7013489B1 (en) * | 2002-06-13 | 2006-03-21 | Mcgrath Diverse Products, L.L.C. | Liner and garment ensemble for thermal wear and anti-exposure suits |
US7005021B2 (en) * | 2003-05-21 | 2006-02-28 | Mountain Hardwear, Inc. | Method of forming and adhesively bonded seam |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090183536A1 (en) * | 2008-01-17 | 2009-07-23 | David Harmon | Quick action padlock protector pouch and chain locking system |
US8622205B2 (en) | 2012-04-16 | 2014-01-07 | Alec Ramsey | Pocket storable hand towel and case |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |